A spherical noise sensor array arrangement for flexible pipe noise testing

Abstract

The application provides a spherical noise sensor array arrangement device for flexible pipe noise testing, which comprises a measuring point structure, a support, a base and a plurality of universal wheels, one end of the support is connected to the measuring point structure, the other end of the support is connected to the base, and one universal wheel is arranged at each corner of the bottom of the base. The application has the beneficial effects that the arrangement time of the sensor is greatly shortened by mainly utilizing the change of the spherical radius of the testing device, the arrangement accuracy of the sensor array is improved, the experimental error is reduced, the device is easy to install and disassemble, convenient to use, and the arrangement requirements of the spherical sensor array in most noise testing experiments are met.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of machinery, in particular to a spherical noise sensor array arrangement device for flexible pipe noise testing. BACKGROUND

[0002] At present, the NVH problem in the field of machinery has become a research hotspot. In order to better suppress the noise problem, it is of the utmost importance to study the noise generation mechanism and noise propagation characteristics. In the noise testing test, in order to more comprehensively collect noise signals, it is often necessary to arrange a spherical noise sensor array. The arrangement of the spherical noise sensor array can only rely on artificial fixed-pointing, which is difficult to guarantee the testing accuracy. In addition, the research demand for the change rule of noise information in different noise propagation paths often requires changing the radius of the spherical sensor array several times in the same test process. Therefore, the conventional arrangement method is difficult to meet the demand of test accuracy. SUMMARY

[0003] Therefore, the present application aims to provide a spherical noise sensor array arrangement device for flexible pipe noise testing to solve the above problems in the prior art.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0005] A spherical noise sensor array arrangement device for flexible pipe noise testing, comprising a measuring point structure, a support, a base and a plurality of universal wheels, one end of the support is connected to the measuring point structure, the other end of the support is connected to the base, and one universal wheel is arranged at each corner of the bottom of the base;

[0006] The measuring point structure comprises a first measuring point, a second measuring point, a third measuring point, a fourth measuring point and a fifth measuring point, the sensors of the first measuring point, the second measuring point, the third measuring point, the fourth measuring point and the fifth measuring point are on the same spherical surface, and the first measuring point, the second measuring point, the third measuring point and the fourth measuring point are connected to one end of the fifth measuring point.

[0007] Further, the measuring point structure further comprises a first spare connecting rod, a second spare connecting rod, a third spare connecting rod and a fourth spare connecting rod, the first spare connecting rod is installed to the first measuring point, the second spare connecting rod is installed to the second measuring point, the third spare connecting rod is installed to the third measuring point, and the fourth spare connecting rod is installed to the fourth measuring point.

[0008] Further, the first measuring point, the second measuring point, the third measuring point and the fourth measuring point have the same structure, the first measuring point comprises a first measuring point rod and a first connecting rod, one end of the first measuring point rod is used for placing a sensor, the other end of the first measuring point rod is installed to one end of the first connecting rod, a first spare connecting rod is installed on one side of the first connecting rod, and the other end of the first connecting rod is installed to one end of the fifth measuring point.

[0009] Further, the first measuring point rod and the first connecting rod are arranged at right angles.

[0010] Further, the first measuring point rod and the first connecting rod are both telescopic rods.

[0011] Further, the fifth measuring point and the first measuring point rod are of the same structure.

[0012] Further, the first measuring point, the second measuring point, the third measuring point and the fourth measuring point are all arranged at an angle of 45 degrees with the horizontal plane, and the fifth measuring point is arranged on a horizontal line with the center of the pipeline.

[0013] Further, the support is of an L-shaped structure.

[0014] Further, the bottom of the base is provided with a counterweight.

[0015] Compared with the prior art, the spherical noise sensor array arrangement device for flexible pipeline noise testing has the following advantages:

[0016] The spherical noise sensor array arrangement device for flexible pipeline noise testing mainly utilizes the change of the spherical radius of the testing device, greatly shortens the time for arranging the sensors, improves the arrangement precision of the sensor array, reduces experimental errors, is easy to install and disassemble, is convenient to use, meets the arrangement requirements of the spherical sensor array in most noise testing experiments, and further, the base in the present application is provided with a counterweight with a certain mass, so that the safety and stability of the device can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and serve as an aid in explaining the present application. The schematic embodiments of the present application and their descriptions serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0018] Figure 1 The overall structure schematic diagram of the embodiment of the present application.

[0019] Explanation of reference signs:

[0020] 1, first measuring point; 101, first measuring point rod; 102, first connecting rod; 2, second measuring point; 3, third measuring point; 4, fourth measuring point; 5, fifth measuring point; 6, support; 7, base; 8, universal wheel; 9, first spare connecting rod; 1, second spare connecting rod; 11, third spare connecting rod; 12, fourth spare connecting rod. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0024] The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0025] As Figure 1 shown, a spherical noise sensor array arrangement device for flexible pipe noise testing, comprising a measuring point structure and a support 6, a base 7 and several universal wheels 8, one end of the support 6 is connected to the measuring point structure, the other end of the support 6 is connected to the base 7, the base 7 is provided with one universal wheel 8 at each corner of the bottom;

[0026] The measuring point structure comprises a first measuring point 1, a second measuring point 2, a third measuring point 3, a fourth measuring point 4 and a fifth measuring point 5, the sensors of the first measuring point 1, the second measuring point 2, the third measuring point 3, the fourth measuring point 4 and the fifth measuring point 5 are on the same spherical surface, and the first measuring point 1, the second measuring point 2, the third measuring point 3 and the fourth measuring point 4 are all connected to one end of the fifth measuring point 5.

[0027] The present application mainly utilizes the change of the spherical radius of the testing device, greatly shortens the sensor arrangement time, improves the sensor array arrangement accuracy, reduces the experimental error, and is easy to install and disassemble, convenient to use, and meets the arrangement requirements of the spherical sensor array in most noise testing experiments.

[0028] In a preferred embodiment of the present application, the measuring point structure further comprises a first spare connecting rod 9, a second spare connecting rod 10, a third spare connecting rod 11 and a fourth spare connecting rod 12, the first spare connecting rod 9 is installed to the first measuring point 1, the second spare connecting rod 10 is installed to the second measuring point 2, the third spare connecting rod 11 is installed to the third measuring point 3, and the fourth spare connecting rod 12 is installed to the fourth measuring point 4. The purpose of the first spare connecting rod 9, the second spare connecting rod 10, the third spare connecting rod 11 and the fourth spare connecting rod 12 is to provide backup in case of damage of the connecting rods of the five measuring points (any damaged connecting rod can be replaced, for example, when the first measuring point 1 is damaged, the staff can remove the connecting rod of the first measuring point 1, install the first spare connecting rod 9 at the position of the connecting rod of the first measuring point 1, and the function of the connecting rod of the first measuring point 1 can be restored), further improving the practicability of the device.

[0029] In a preferred embodiment of the present application, the first measuring point 1, the second measuring point 2, the third measuring point 3 and the fourth measuring point 4 have the same structure, the first measuring point 1 comprises a first measuring point rod 101 and a first connecting rod 102, one end of the first measuring point rod 101 is used to place a sensor, the other end of the first measuring point rod 101 is installed to one end of the first connecting rod 102, the first connecting rod 102 is installed with the first spare connecting rod 9 on one side, the other end of the first connecting rod 102 is installed to one end of the fifth measuring point 5, the first measuring point rod 101 and the first connecting rod 102 are arranged at right angles, and the first measuring point rod 101 and the first connecting rod 102 are both telescopic rods, and in actual use, a sensor can be installed on the first telescopic rod 11.

[0030] In a preferred embodiment of the present application, the fifth measuring point 5 and the first measuring point rod 101 have the same structure.

[0031] In a preferred embodiment of the present application, a spherical noise sensor array arrangement device for flexible pipeline noise testing comprises five measuring points (a first measuring point 1, a second measuring point 2, a third measuring point 3, a fourth measuring point 4 and a fifth measuring point 5), a support 6, a base 7 and universal wheels 8. The rod-shaped structures of the five measuring points are designed as telescopic cylindrical structures to achieve the function of conveniently adjusting the positions of the measuring points, the connecting rods where the first measuring point 1 and the third measuring point 3 are located can rotate coaxially, the connecting rods where the second measuring point 2 and the fourth measuring point 4 are located can rotate coaxially, and the five measuring points are on the same spherical surface, in actual use, the center of the end face of the tested pipeline is taken as the spherical center of the spherical surface where the measuring points are located, and the spherical radius is the distance from the fifth measuring point 5 to the center of the pipeline surface.

[0032] In a preferred embodiment of the present application, the distance between the measuring points is adjustable, that is, the radius of the spherical surface where the measuring points are located is adjustable.

[0033] In a preferred embodiment of the present application, the distance between each measuring point is the radius of the spherical surface, the angle between the first measuring point 1 and the second measuring point 2 and the horizontal plane is 45°, the angle between the third measuring point 3 and the fourth measuring point 4 and the horizontal plane is 45°, and the fifth measuring point 5 and the center of the pipeline are on the same horizontal line.

[0034] In a preferred embodiment of the present application, the radius of the spherical surface where each measuring point is located is adjustable, and the connecting rod where each measuring point is arranged adopts a telescopic cylindrical structure.

[0035] In a preferred embodiment of the present application, the base 7 has a certain mass. This structure can meet the arrangement requirements of the variable radius spherical surface noise sensor array and can ensure the safety and stability of the device.

[0036] Example 1

[0037] A spherical surface noise sensor array arrangement device for flexible pipeline noise testing, according to the diameter of the pipeline, selects the appropriate radius of the spherical surface where the sensor array belongs. First, adjust the height of the whole device, that is, adjust the position of the supporting member 6, adjust the position of the fifth measuring point 5 to the position where the center of the end surface of the test pipeline is flush, move the device forward and backward so that the distance between the fifth measuring point 5 and the center of the end surface of the test pipeline is the radius of the spherical surface where the sensor array is located, adjust the angle between the connecting rod where the first measuring point 1 and the third measuring point 3 are located and the connecting rod where the second measuring point 2 and the fourth measuring point 4 are located to adjust the horizontal distance between the two measuring points, adjust the length of the connecting rod where each measuring point is located to adjust the vertical distance between the two measuring points, and adjust the length between adjacent measuring points to the length of the radius of the spherical surface where the sensor array is located to meet the requirements of the test on the arrangement accuracy of the sensor.

[0038] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An arrangement of spherical noise sensor arrays for flexible pipe noise testing, characterised by: It comprises a measuring point structure, a support (6), a base (7) and several universal wheels (8), one end of the support (6) is connected to the measuring point structure, the other end of the support (6) is connected to the base (7), the bottom of the base (7) is provided with one universal wheel (8) at each corner; The measuring point structure comprises a first measuring point (1), a second measuring point (2), a third measuring point (3), a fourth measuring point (4) and a fifth measuring point (5), the sensors of the first measuring point (1), the second measuring point (2), the third measuring point (3), the fourth measuring point (4) and the fifth measuring point (5) are on the same spherical surface, the first measuring point (1), the second measuring point (2), the third measuring point (3) and the fourth measuring point (4) are connected to one end of the fifth measuring point (5); The angle between the first measuring point (1) and the second measuring point (2) and the horizontal plane is 45°, the angle between the third measuring point (3) and the fourth measuring point (4) and the horizontal plane is 45°, and the fifth measuring point (5) and the center of the pipeline are on a horizontal line; The support (6) is in L-shaped structure; The base (7) is provided with a counterweight at the bottom; The arrangement device is used for flexible pipeline noise test; The first measuring point (1), the second measuring point (2), the third measuring point (3) and the fourth measuring point (4) are the same in structure, the first measuring point (1) comprises a first measuring point rod (101) and a first connecting rod (102), one end of the first measuring point rod (101) is used for placing a sensor, the other end of the first measuring point rod (101) is installed to one end of the first connecting rod (102), a first spare connecting rod (9) is installed on one side of the first connecting rod (102), the other end of the first connecting rod (102) is installed to one end of the fifth measuring point (5); The first measuring point rod (101) and the first connecting rod (102) are arranged at right angles; The first measuring point rod (101) and the first connecting rod (102) are both telescopic rods; The fifth measuring point (5) and the first measuring point rod (101) are the same in structure.

2. A spherical noise sensor array arrangement for use in testing a flexible pipe for noise according to claim 1, characterised in that: The measuring point structure further comprises a first spare connecting rod (9), a second spare connecting rod (10), a third spare connecting rod (11) and a fourth spare connecting rod (12), the first spare connecting rod (9) is installed to the first measuring point (1), the second spare connecting rod (10) is installed to the second measuring point (2), the third spare connecting rod (11) is installed to the third measuring point (3), and the fourth spare connecting rod (12) is installed to the fourth measuring point (4).

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